grubelic



y 1939- N. GIRUBELIC 2,158,773

DEVICE FOR DISPENSING AND MIXING PAINT AND THE LIKE Original Filed March 19, 1935 3 Sheets-Sheet l INVENTOR May 16, 1939.

N. GRUBELIC DEVICE FOR DISPENSING AND MIXING PAINT AND THE LIKE 3 Sheets$heet 2 Original Filed March 19, 1935 1 May 16, 1939. GRUBELK: 2,158,773

DEVICE FOR DISPENSING AND MIXING PAINT AND THE LIKE Original Filed March l9, 1935 5 Sheets-Sheet 3 Patented May 16, 1939 g a g 2mm DEVICE ron msransm m mxmo PATENT OFFICE a 7 AND 'rnauxa NlcholnlGfilbllc, Great Neck, N. Y.

. Application March 19, 1935, Serial No. 11,893

v Renewed February 8, 1939 .,This invention relates to devices for dispensing and mixing paints, etc. i

3 .Atthe present time, paints for use in shops wherere-painting and re-touching is done are mixed from several different containers with the aid of mixing utensils and in accordance with r predetermined formulae.

The paint manufacturer at the present time provides standard colors in quart containers.

When it is desired to 'attaina quantity of mixed paint, a formula is consulted and with the aid of the mentioned-utensils, two, three or more ofthe, standard colorsare mixed to "attain the desired blend.

As can readily baunderstood, the opened containers of standard paint being exposed to atmosphere, a certain amountof dehydration ocours, and thereafter, paint in such a used container would be more heavily pigmented per fluid ounce. This prevents successfully using the same formulaat a later time for matching the original paint, o'nly the experience of the person ,doing the mixing serving to ultimately and after great effort, attain an exact match.

Further, the formulae supplieh are for the purpose of attaining a mixture of one quart, but

should, for instance, ten or twelve ounces of mixedpaint be desired, the mathematical calculations involved would ordinarily be too difficult for the person doing the mixing and the mentioned utensils could not be employed with the same facility.

The present invention therefore contemplates the provision of means whereby any desired quantity of mixed paint may be attained with minimum effort and with great facility.

The invention also contemplates the provision of means whereby standard .paintcontainers may be dispensedirom 'at different periods of time with assurance that at all times, the color inwardly opening check valve 28.

tensities of the paints therein do not vary.

The invention further contemplates the provision of mechanism employing pre-settable means-for determining the proportion of paint desired in relation to a quart; that is, should the formula call for ,eighteen ounces of one I standard color and fourteen ounces of another,

constructed in accordance with the invention, portions beingbroken away.

Fig. 2 is an'enlarged elevational view showing the front mechanism of the device.

'Fig. 3 is a vertical sectional view as taken along the line 3-3 of Fig. 2.

Fig. 4 is a fragmentary elevational view as viewed in the direction or the arrow. of Fig. 3. Fig. 5 is a further enlarged cross-sectional view as taken along the lines F! of Fig.3. fig. 6 is a vertical sectional view of a paint container holder employed in this invention.

The device as here disclosedcomprises a frame 10 supported by brackets H on a base plate i 2,

the front of the frame being provided with n.

front plate l3. It is also preferred to incorporate a compartment l4, symmetrically arranged in relation to the frame Ill, the purposes of which.

will be later described. A paint container holder I! (Fig. 6) is provided with an internally threaded seat l5 for the reception of the threaded end I! of a paint container l8. These containers are usually in the form of round metalv cans and have a capacity of one quart.

The holder I5 is preferably provided with a base 19 to insure stability and the bottom of the seat It is providedwitn a check valve 20 controlling the passage 2| in the holder.

Preferably integrally formed with the holder, there is provided a vertically disposed cylinder 22 having communications with the outer end of the passage 2 I. The cylinder is equipped with a piston 23 and provided with a stuffing box 24 at the upper end.

The upper end of the piston 23 is preferably formed with an under-cut portion 25 and a stop pin 26 carried by the cylinder limits the downward movement of the piston in said cylinder. The lower open end of said cylinder is provided with a fitting 21 in which is incorporated a down- Carried by the holder and in a manner so that-it will enterthe container l8, there is provided a pipeor tube 29 having at its upper end an air release valve 30 and carrying at intermediate portions, the vanes or mixing blades 3|.

In use, a can of standard paint, after. removal of its cover, is threaded into the seat It, the

holder l5 being inverted until the can is firmly seated. in the container, this whole assembly is thoroughly shaken, the vanes 3! serving to accomplish this. It is apparent that when the piston 23is raised; paint from ,the container will pass by the valve 20 through the passage 2| In order to thoroughly mix the paintision portion 52 over-standing the finger 5i into a cylinder 22, and when the piston is lowered, the paint in the cylinder will be ejected through the check valve 22. The stroke of the piston 23, therefore, determines the amount of paint drawn from the container. In the present instance, the cylinder 22 is designed to hold one ounce of paint when thepiston has been raised the maximum amount and. therefore, each full stroke of the piston would discharge one ounce of paint through the valve 28. As the stroke is shortened, a lesser amount of paint is so discharged.

As paint is so withdrawn from the container, air is automatically drawn into said container through the tube 2| and valve II. This air, being above-the paint and trapped'in the container, cannot escape and thus dehydration of the paint is obviated.

'lhe holder above described is positioned in the frame II as best shown in Figs. 1, 2 and 3 and is supported on'the base I! thereof. In order to retain the holder against inadvertent displacement, there is which engage the flange ll of the holder. These clamps may be raised and lowered by manipulation of a handle 22 on one end of'a shaft 24. The shaft, as here disclosed, is-provided with a pair of eccentric portions II which are each engaged by an arm pivotally mounted on the rod 21.

A- spring such as shown at "is employed to maintain cooperative relation between each eccentric SI and its respective arm 36. One end of the shaft ll is preferably provided with a spirally wound spring 8!, always tending'to retain the eccentrics 25 so that they will act ,on the levers II to force the clamps 32 down on the flange ll of the holder ll. Manipulation of the handle 38 counteracts the tension of the spring II to free the holder so that it may be removed from the frame. I

In the upper p rtion of the frame It, there is horiaontallydisposed a shaft 40 mounted in bear ings 4i and provided with ahandle 42. At a medial point of the frame it, as viewed from the front, the shaft is provided with a worm 43 and on each side thereof is provided a spur pinion I4. I I

A frame ll having respective rack portions 46 mes-hing with each pinion 44 is mounted for vertical movement-in guide ways 41. The lower end of the frame 45 carries-a" pivoted latch 0,

spring tensioned as at 49, and provided with a cam portion ill. This latch portion is also preferably provided with an upper extension finger oppositely disposed to the latch is a somewhat similar pivoted latch 52, also formed with a cam II, and spring-tensioned as at 48. The upper portion of the latch 52 is formed with an extenof the latch ll. The latch 52 is also provided portion I4 engaged with the lower end of the link I! pivoted at 58 to a rock member 5'! pivotally mounted on the frame II) as at 58. The rock member 51 is also formed with a horizontally disposed finger is.

As viewed from the front, there is provided between the'racks II, a ratchet wheel 60 mounted for rotation at I and having fixed thereto a dog 02 engageable with the finger IQ of the rock mem ber II. The frame I is provided with a ratchet actuating pawl 62, and means such as the holding pawl 04 may be employed to retain the ratchet wheel I against inadvertent rotation. I

The pivot shaft CI of the ratchet wheel 60 is I frame 45 which pushes against the top provided means such as clamps 32 I subsequent with a ranged to protrude graduation of the scale 81 which is numbered for the number of strokes of the piston 23' desired; It is apparent that the dog 62 will then be radially spaced from the finger 58 in accordance with the setting of the pointer. As the handle 42 is turned to raise the frame 45, the latches l8 and 52, each engaged in the undercut 25 of the piston 23, will raise said piston in its cylinder 22 and in this way draw paint from the can I! into the cylinder. Reverse rotation of the handle 42 will lower the of the piston, forcing it down in the cylinder, ejecting the paint in the piston through the valve 2!. At the end of the stroke of the frame 45, the pawl 53 engages the ratchet wheel 60 to rotate it one tooth in a clockwise direction, thereby radially moving thedog 62 and the pointer 66 a like amount towards zero on the scale 61.-

Continued rotation and reverse rotation of the handle 42 will eventually bring the dog 62 to the position shown in Fig. 2, at which time the pointer 66 will be at the graduation marked 1" on the scale 61. frame their hold It will be noted that each time the moves up, the latches II and 52 retain on the piston but upon the last stroke to the one which placed the parts as shown in Fig. 2, the dog 62 will engage the finger 59 of the rock member 51 to rock said member in a counter-clockwise direction, pulling on the link to rock the latch 52 away from the undercut 25. This rocking of the latch 52 causes the over-standing arm ii to depress the finger 5i and thereby rocking the latch 48 outwardly also. Now, as the frame 45 moves upwardly, the latches 48 and 52 being out of engagement with the piston, said piston will not move upwardly. At this time, the operator has completed the dispensing of a desired quantity of paint, from the container II, and hence the pointer 66 will be at 0.

- The foregoing description relates to the dis-' 'mesh with the worm 42 and is disposed thereabove. The sleeve H the frame I II as at 12 with an enlarged hub 13 carrying a pin 14. outer end of the sleeve, outside of the frame i0, is provided with a pointer ll.

Disposed in the hollow of the sleeve ii, there is provided a shaft 16, one end projecting beyond the outer end of the sleeve 1i and having a hand knob 11 and an index pointer 18. The inner end of said shaft 16 is provided with an enlarged portion 18 which carries an abutment member 00 operatively engageabie by the pin 14.

The outermost end of' the portion 18 is aroutside of the rear of the frame in and is flanged as at 8|. This flange is mounted 'for rotation in The plate II is mounted the frame I and a comgh the valve 28 at each and is provided at one end The pression spring ti on each stud serves to hold the plate 83 against the flange ll of the shaft 16, the fiange'tl in turn being pressed in'this manner against the fixed plate I2.

" The pressure. of the plate um. the new :1

" maybe relieved bymanipulation oi the handle 88 on the frame] 10.;

on the shaft which is mounted in brackets The pointer" andthe index pointer li are associatedwith a scale 93, preferably graduated into.thi'rty-two equal main divisions and such other equal minor subdivisions, preferablysixteen. This scale is based on the number offluid ounces in a quart andthe pointers associated therewithare employed'in theioliowing man- ;To bestfset forth the operation of the device, an example of one'manner of using .it will be described." First, the formulae are consulted and it is determined which two, three or more standard colors are necessarywto attain the mixed fluidounces of lightmaroo"n and V ounce of" 1 ment ,a can containing dark maroon paint- 'iiiis set ,at 313 on the scale 83.

color desired. For example, Bordeaux? maroon requires 13% iiuidounces. of dark maroon, 18%

black. The operator removes from the compartanditsholder and places it into the machine as heretofore described. Since 13% fluid ounces are called for inthe formula, the index pointer it complished by a forwardpull on t handle it to free the flange ll andfmanipulatio of the hand knob 91.] The handle 88 is then. released and the plates 82 and II will clamp the flange ll to maintain the indexpointer 1| where set. It willbe notedthat the abutment 80 which isr'elated to the indexipointer ll will-assume a definite spaced relative radiahposition to the c As the handle 42 is rotated, the worni l l will y rotate theworm wheel [0 until the pin 14 strikes against the abutment lllcsince the frame 41' 'movesupward at the stroke of the handle 42.

said frame will; come to rest at this upper point when the pin ll engages the abutment. Reverse rotation of the handle 42 will move the frame downas-previouslydescribed... It is apparent, therefore, that. the stroke of the piston? 23 hasthat relation to a full ounce s 913 /5" has tof32. I i i c .As previously described, the pointer is set; in relation to the stroke scale 81 at that graduation which corresponds to the number of ounces r r mixed paint desired and, therefore, with the pointer. 66, set at 12 .as shown, .twelve strokes pensing from the paint container for the piston will be made with each stroke, dis- "of an ounce. Sincethe abutting action ot pin "against the abutment It serves as the msaws c v v "upper .limit of. the stroke ofthe'pistonand the This is aclower limit of said stroke is determined by the pin "26 in theholder- II, the pointer II may be dispensed with but its employment in this device is advantageous since the operator can more flexibly utilize the mechanism with its H After dispensing this amount of dark maroon, the holder and canofthis paintare removed from the device and replaced in the compartment It.. A similar holder with a can 01' light maroon is then placed" in the machine. Inasmuch as the formula callsfor 18% fluid ounces of this color per quart of mixed paint, the index pointer II is now set at "18%" on the scale 03 and the machine is operated as heretofore, twelve strokes being made, each stroke dispensing of an ounce. This holder-is 'nowreinoved from the device andua holder carrying a can of black paint is inserted and the index pointer II is set at V on the scale I! and thetwelve strokes repeated, each strokedispensing ofan ounce of black paint. c

The container C which is placed belowthe oriiice of] the valve 28 will now contain twelve fluid oufibes of paint comprising the three colors, dark maroon, lightmaroon and black in their proper proportionsnIt is now certain that this mixture. of paint'sis the desired Bordeaux" maroon sought to attain. The scale 93, of course, is designed to suit the formulae used. Should other formulae such as one based on a hundred ounces, be employed, this scale would naturally be proportioned to.

j suit.

From the foregoingyit is apparent that simple mechanism for the purpose intended has been.

provided and since it isa parent that many immaterial changes in the design, form, proportion and sizes oi the parts may well be made without departing from the general scopeoi the invention,the appended claims should not be read-in the light of this specific ratherpin view or the prior art Iclaim: 1- f l l. A machine for mixing a. predetermined quantity of paint comprising a removable paint disclosure but holder, a paint receiving chamber associated therewith, reciprocatory means for withdrawing paint i'rcm 'saidholderinto the receivingfchambet and for discharging the paint from said chamber into acollecting container, means for and so discharged comprising. means for indi eating the number of strokes of, said reciprocameans and thereby to predetermine the tractional part of said total amount withdrawn at each stroke in accordance with the ratio of the quantity ofthe paint of one color withdrawn from the container to the total quantity of mixed I said holder. i

2. A machine for mixing a predetermined quantity oi paint comprising a holder for paint controlling the amount of paint. so withdrawn -tory means to correspondt'o the number'of measuring units in thetotal quantitygofimixed paint desired, means for indicating and predetermining the length of each stroke of said rleciprocatory to be mixed, a pointer, and means controlled b the pointer for regulating. said strokes.

3.. A machine. for mixing paint of a number of standard colors to produce a predetermined quantity of mixed paint in which the standard colors are proportioned according to the proportions thereof in a predetermined formula, comprising reciprocatory means for dispensing paint of the standard color,. revoluble operating means for the reciprocatory means, means for rendering the reciprocatory means inoperative to dispense said standard color paint after a predetermined] number of strokes 01' said reciprocatory means, and means for varying the length of said strokes independently of said second-mentioned means comprising a movable stop adapted to be arranged in the path of said revoluble means.

4. A machine for mixing a predetermined quantity of paint comprising a paint holder, a paint container associated therewith, a paintreceiving cylinder in said holder, a piston reciprocably operable in said cylinder, means to operate said piston for withdrawing a proportioned quantity of paint from said container into the cylinder and for discharging the paint from said cylinder into a collecting container, and means for predetermining the quantity of paint so withdrawn and discharged, comprising stop means adapted to be arranged in the path of the piston operating means to determine the stroke of the piston, presettable indicating means operatively connected to the stop means, and means for predetermining the number of strokes of the piston including means for disengaging the operating means from the piston after the predetermined number of strokes have been made, and presettable indicating means for controlling the operation of the disengaging means.

' 5. A'machine for mixing paint of a predetermined quantity and color comprising a paint holder for paint of a difierent color, a paint-receiving cylinder in said holder, a piston reciprocably operable in said cylinder, means to operate said piston for drawing a proportioned quantity of paint from saidrcontainer'into the cylinder and for discharging the paint from said cylinder into a collecting container, a scale provided with indicia indicating the proportionate quantities of paint of said diiferent color in formulae for paint of said predetermined color, a pointer for the scale, and stop means operatively connected to said pointer and settable in the path of said piston operating meanson the setting of said pointer to control the length of the stroke of the piston, said stop means comprising To a pair of parallel plates, a third revoluble plate interposed between the pair of plates, means for clamping all of said plates together with the revoluble plate in any selected angular position, a relatively fixed stop member movable with the revoluble plate, a relatively revoluble stop memcassava ber adapted to engage the relatively fixed stop vmember to halt operation of said piston operating means, and means operatively connecting the revoluble stop member to the piston operating means.'

6. In a machine for mixing paint of a predei termined quantity and color, reciprocatory means for withdrawing ,paint from. 'a container vessel, and means for controllingthe number of strokes of said reciprocatory means comprising 'andfor discharging said paint into a' receiving a scale, a presettable pointer for the scale, a v

paint from a container including a cylinder, a. piston in the cylinder, a pin engageable with said abutment at the top of the stroke of the piston, a pointer associated with the mentioned scale and with the pin, a fixed abutment engageable with the piston at the bottom of its stroke, and means for rendering inoperative said piston upon the final stroke of the reciprocatory means.

8. In a device of the character described, a piston, a reciprocatory frame, means on the frame for engaging the piston for operation thereof, means for regulating the number of strokes of said piston, and means for disengaging the piston engaging means upon the last reciprocation of said frame.

9. In a machine for dispensing a predetermined quantity of paint of a standard color in accordance with the amount of paint of said standard color in a formula based on a unit quantity of mixed paint of which said standard color is an ingredient, a first indicating scale for the total quantity desired oi the mixed paint of which the standard color dispensed by the machine is an ingredient, a second indicating scale for the amount of the standard color in said formula, means for withdrawing paint of the standard color from a container of such paint, pointers for each of said scales, and stop means operatively connected to said pointers and controlling the operation of said withdrawing means, said stop means rendering the withdrawing means inoperative after the predetermined quantity of said standard color has been dispensed by said withdrawing means.

10. In a machine for mixing a predetermined quantity of paint of a predetermined color,

means including a movable pointer and a scale for indicating said predetermined quantity, means including a valved container for paint of a color other than the predetermined color for delivering a quantity of paint of said other color, said last mentioned delivered quantity being proportionally related to said predetermined quantity, a second movable pointer, a second scale as sociated with the second pointer and indicating the proportional relation of the delivered quantity to said predetermined quantity as given by a formula for any unit quantity of mixed paint, and adjustable stop means operatively connected to and settable with said second pointer.

2,158,778 11. In a machine for mixing a predetermined i of paint proportionally'related to the amount of mixed paint desired, said means comprising rewciprocatory means, means for regulating the stroke thereofflincluding ascale, a pointer for the SC3.l8,St0D' means controlled by the pointer and limiting the operative stroke of the reciprocatory means, means for removably locking the pointer and the stop means in a selectedposition relatively to the scale, a second pointer, and means operatively connected to and responsive to the setting of said second pointer for determining the number of operative strokes of said reciprocatorymeans. 12. In a machine for mixing a predetermined quantity-of paint of a predetermined color, means ior removably holding a. selected one of a series of paint containers each containing paint ofa different color or shade, means for withdrawing from each selected container at quantity of paint proportionally related to the amount of mixed paint desired, said means comprising reciprocatory means, means for regulating the stroke therein, and means for rendering inoperative' said reciprocatory means upon the last stroke thereof. f

13.In a machine for dispensing a predetermined quantity of paint of a predeterminedcolor,

predetermined quantity lected. position on the ,drawing a paint container, a holder for the container, means for removably clamping the containerto the holder, a pump carried by the holder, means and means for rendermined quantity has been dispensed by the machine, comprising. indicating means adapted to be set into aselected position to indicate said and to also indicate the amount of the paint of said predetermined color in a formulae for mixed paint of a desired color, and stop means operatively connected to the indicating' means and adapted to be set into a sesetting of the indicating means for rendering the pump inoperative.

14. In amachinefor mixing a predetermined quantity of paint of a. predetermined color, a container for paint ofa difierent color, reciprocating means having a variable stroke for with paint from said container, indicating means for indicating said predetermined quantity and means for also indicating the amount of paintof saiddiflerent color contained in a unit quantity'oi' mixed paint of the predetermined color,-stop means for controlling the effective number of paint withdrawing strokes of the reciprocating means, stop means for determining the length of each stroke, means operatively con necting the indicating means to the stop means, and valve means for controlling the flow ofpaint from the container, said valve means, being opened and closed on the reciprocating means.

connected to the pointer for rotation therewith,

plate rotatable with the pointer and with saidplate to prevent opstop, means ior'locking said eration of said pointer and thereby to set said stop, a pump, means for operating said pump,

and means for controlling the operation of said pump comprising a rotatable pin adapted to engage said stop after a charging a standard color reciprocation of the.

paint dispensing machine, a scale, a, rotatable pointer for said scale, a stop operatively predetermined operation of said pump operating means.

16. In a machinefor dispensing a. predetermined total quantity of mixed paint, of a color other than standard, said total quantity comprising lesser quantities of a plurality of paints of standard colors, means including a valve for dispaint from a selected container, a total quantity indicatinglscale, a movable pointer adapted to belset toindicate said totalpredetermined quantity on said scale, means adjustable by and operatively connected to said pointer to render the discharging, means inoperative after the required quantity of standand paint has been discharged from the con tainer, andmeans scale and adjustingmeans, for limiting the total quantity discharged from said container to the same proportion oistandard paint as that given in a formulafor said mixed paint, said last-mentioned means including a second indicating scale anda second movable pointer for said second scale adapted to be set to of standard paint in the formula. l

17. In a machine fordelivering from-different containers ofstandard-color paints a total predetermined quantity of mixed paint diflferent in color from any of its standard-paint ingredients and in accordance with ,a formula. for aunit quantity of said mixed paint, a reciprocatory pump, means for .operatively connecting the pump to a container of standard color paint including a valve opened on the stroke of the pump in one direction to remove paintfrom the contain'er and a second valve opened onthe oppoe site stroke of the pump toidischarge the paint, indicating means for indicating said predetermined quantity and for also indicating the quantity of standard paint in said unit formula, and means controlled by the indicating means ;for controlling the length of the stroke of the pump and the number oreifective strokes thereof and thereby causing delivery amount of said standardpaint indicated bythe indicating means, and the total predetermined cooperating with said pointer,

or that amount of, standard paint equal to,,the productof the indicate the quantity quantity of mixed paint indicated by said indispaced relation to the container discharge valve and'operatedon operation of the pump to open when the first discharge valve is closed, and to close when the first discharge valve is open, in-

dicating means '1 for indicating said predetermined quantity and the quantity of standard paint in said unit formula, and pump controlling means controlled by the indicating means to ,eifect discharge through said second discharge valve ofthat amount of standard paintequal to the product of saidpredetermined quantity and the quantity of said standard paint indicated by the indicating means. w 1

19. In a machine for delivering from different containers of standard-color paints a total mixed paint diflerent predetermined, quantity of in color from any of its standard-paint ingredients and in accordance with a formula for a unit quantity of said mixed paint, a reciprocating pump, revoluble means including a manually rotatable handle for operating the pump, a first discharge valve for the container adapted to open on rotation of the handle in one direction, a second discharge valve for discharging paint from the machine adapted to open on rotation of the handle in the opposite direction, and means for controlling the amount of angular rotation of the handle and the number of efiective rotations of the handle to predetermine the quantity of standard color paint withdrawn from the container and delivered by the machine.

20. In a machine of the character described, revoluble indicating means for indicating the quantity of a standard-color-paint ingredient in a formula for a unit quantity of mixed paint comprising a pair of coaxially mounted revoluble pointers, a scale for said pointers, a relatively fixed stop movable with one of said pointers, means for clamping said stop in any angular position corresponding to the position of one of said pointers relatively to the scale, said clamping means comprising a pair of plates, a third plate interposed'between said pair, and a clamping handle for clamping all of said plates together, a revoluble stop movable with the other of said pointers, and paint pumping means overatively connected to the revolublestop and to said other pointer and adapted to operate until said stops are brought into engagement and said pointers are coincident on the scale.

21. In a machine of the character described, a scale, a pointer for said scale, a relatively fixed stop member, a firstplate, a pivotally supported member carrying the pointer, stop member and plate, means for clamping said member in the position into which it is set on the movement of said pointer relatively to the scale, said means comprising a pair or clamping plates arranged at opposite sides of the first plate, and means for clamping all said plates together in the adiusted position of said first plate, a pump for delivering paint, a relatively movable stop member arranged to move in a path to engage the relatively fixed stop member, and means operatively connecting the relatively movable stop member to the pump whereby the pump is rendered inoperative on the engagement of said stop members with each other.

22. In a machine for delivering from different containers of standard color paints a total predetermined quantity of mixed color paint different in color from any of its standard-color ingredients and in accordance with a formula for a given quantity of said mixed color paint, a

container for paint ofone standard color, a pump associated with the containerand including a piston, means for removablysupporting the container and pump whereby another similar container and pump may be substituted for said first-mentioned container and pump, means for operating the pump, means adapted to be engaged with anddisengaged from the piston for connecting the pump operating means to the pump and for disconnecting the pump operating means from the pump, indicating means operatively connected to the pump operating means for indicating the proportionate amount of each standard color paint in the formula and for also indicating said predetermined quantity, means for controlling the amount of paint of the standard color discharged by the pump-and for and limiting said amount to the product of the amount of said standard color paint in the formula and the fraction whose numerator is said predetermined quantity of mixed color paint desired and whose denominator is the total quantity of mixed paint in the formula.

23. In a machine for delivering from different containersof standard colorpaints a total predetermined quantity of mixed color paint different in color from any of its standard-color ingredients and in accordance with a formula for a given quantity of said mixed color paint, a piston for and associated with each of the containers, means connectible to and disconnectible from the piston of any selected container for operating the piston to withdraw paint of a standard color from the selected container, means for indicating the total quantity desired of the mixed paint of which the standard color paint dispensed by the machine is an ingredient, a second indicating means for indicating the proportionate amount of the standard color paint in the formula, and means operatively connected to the indicating means and controlling the operation of the piston operating means.

24. In a machine for proportioning different standard color paints to produce a predetermined total quantity of paint of a mixed color, said quantity being diiierent from that given by a formula for the mixed color paint, a chamber for standard color paint, a valve for said chamber, a piston within and carried by the chamber, means for removably supporting the chamber in position for movement of the piston therein, means for moving the piston in one direction to discharge paint from the chamber and in the other direction to draw paint into the chamber, means for indicating said total quan-' tity, means for indicating the quantity of standard color paint in the formula, means for operatively connecting the piston with said indicating means, and means for rendering the piston moving means inoperative to move the piston after the required quantity of standard color paint has been dispensed, said required quantity being the product of the amount of said standard color paint in the formula and the fraction whose numerator is said predetermined quantity of mixed color paint and whose denominator is the total quantity of mixed color paint in the formula,

25. In a machine for proportioning different standard color paints to produce a predetermined total quantity of paint of a mixed color, said quantity being different from that given by a formula for the mixed color paint, a container for paint of one standard color, a pump associated with the container and including a piston, means for removably supporting the container and pump for the substitution of said container and pump by a similar container and pump for paint of a different standard color, a valve for the container, means for moving the piston to discharge paint from the container, indicating means to indicate said total quantity, additional indicating means to indicate the quantity given by said formula of that standard color paint in the container, and means for rendering the piston moving means inoperative after the required quantity of standard color paint has been discharged from the container.

NICHOLAS GRUBELIC. 

